Seaming machine



Aug. 16, 1927. J BREN-ZINGER smmme MACHINE Filed Jan. 27. 1925 v 6 Sheets-Sheet 2 ATTORNEY Aug.16, 1927.

.1 BRENzlNGl-:R v

SEAHING MACHINE Filed Jan. 2'?. 1925 \e sheets-sheet s l ww ATTORNEY Angie, 1927.

J. BRENZINGER 'SEAMING MACHINE Filed Jan 27 1925 6 Sheets-Sheet 5 R (Wm. m E. N N 5 R Efv O V n WW A n. B ww M .v ,m m. j

Patented Aug. 16, 1927.

NITED' enr-SENT OFFICE.

JULIUSETEENZINQEE, oE'fEAiniiEEn, AS'SGNOE To THE MAXl AMS MnonInEcoM'rANY, OE BEIDGEPQRT, .GONNECTICUT, A CORPORATION oF NEW YORK.

'"siniiivnn'e MACHINE.

'Appneann mea Januaryjm, 1925. serial No. 5,-018.

the work is not eiected until near theend,

of the seaniing operation.

This long-continued engagement of the seeming tool with thejinetal of the cover and bot y tends to change, adversely, the characteristics 'of the metal.. Fuitherniore7 especially when acting on non-circular Vbodies and covers, in certain types of -seaining Inachi es it is customary to so arrange the parts that during the time the vsearnifig'tool is moving toward the work certain gears are moving into in'esh, the gears .re'herredVA to ibe. v'the ones that drive they seaniing tool.

it will be lunderstood that ithesev gearsezn# ,f a'a'e gradually, 'rather than suddenly to their full eri-tent', fdiiferent `speeds of'thefsaine' parte vwill be obtained 'at different times durinv' t e seainmg period owing tof'he differajree ot interines'liing of the Agears-end h i de this of course isdisadvantageous.

Tl... main object and feature of this `invention'is to overc'oinethe labo-ve"objectionable 'features so that the characteristicsof the inetal 'of tlie'workinay not'bechanged and so that the partsinay'jbe synchronized in their movements atlall times, and the invention therefore consistsof the featuresfjot construction,farrangenientof parts. coinbinati-onof elements apreferred or'mj'of which isdisclosed in the accompanying descripti-ony and drawingsfin 'whieh latter: y

Fig. 'l is a rontelevat'i'on of ainachir'iey embodying the invention. v

Fin'. Q is aside Eelevation'thereof.

Fi 3 isa rear elevationthero'f.' K

" Fig. Alis adetail View infrontfelev'at'i'on, on an enlarged` scale, ofone ofthe sea-ming roll bearings and adjacentjparts.

Fig. 5 is a horizontal 'section on the plane'- ot irregularline l (5f-Fig. il.

Fig. '6 is' 4a.'ho'rizont'al sectionalV View on abt'eristicfof its inpulse.

Vn'erfwell understood Shaft L10 carries'y two 'Y no therplane of line G,-G ot Fig.'3 showing, on an lenlarged scale, the pneinnatically-operated actuating' device.

Fig. -7 is a transverse vertical ,sectional view on' theplane of Vline 7-*7 of Fig. 6.

Fig; -8 is an enlarged'vertical sectional view on theplane of line 8-'-8 of Fig. y2.

Fig.- "9, is an enlargedv detail sectional view otsorne of the Gains as viewed in the *direc-y tion of arrow 9of Fig. 3.

Fig. 130 is a detail sectional View of the firstoperation cam on the planeet line10- 10 oflFig. 3. l

Suitable work. holding means Such as pedestal l and head 2nite providedfbetween which'a Acan 3 with its cover 4 'is placed. 5 and `6 indicate two lseaming too-ls, 5 being the first Ioperationtool and `6 the finishing tool.. Each of these tools has a certain stroke moving it toward and away fronrthe work, by suit-able actuating means to be presently described, so yarranged that each tool lcompletes its stroke toward the work substantially at the beginning of'its seaming opera-tion. `@ne revolution of the 'work will therefore complete the seaining open' ation of `one tool.

In thefpresent vcase each seaming tool is carried byfa seam-ing tool Ashaft TInovably mounted andliaving ati-ts lower lend 'a' gear Sthat'is'mo'vecl intoand out cit-mesh with `near 9 moving with head 2. lnasrnuoh as the 'tool completes its inward "stroke substantially at the beginning Iofits sealning operation one vofthe vrgears 8 *andgear 9 are brought fully intomesh substantially at'the beginnin'gof :theseaming operation of av too.

Any suitable a'ctujzfitingz-rneans'fsuchA as a erably a pneulnatically-oper-atedv device'is utilized bn taccount of the quickness offits inotionanda'lsobecause of the yielding char'-v The'general arrangementof the ymachine to 'w'hi'clrthe invention `is inthe'present case applied is as follows:

. 1'() is ainainshaft havinga suitable clutch I llandfabrale 12 both of which are acf tuate'd by lever 13V pivoted atllll'end so ar-A Y ranged 'that when' theclitch is thrown in'tl'e Hh v bevel gears/15 and 16 the former `driving bevel gear 17 of the pedestal drive and the latter meshing with bevel gear 18 driving upright shaft 19. At its upper end said upright shaft is provided with a bevel gear 2O that meshes with a bevel gear 21.0n shaft 22 which latter carries a 'bevel gear 23 meshing with bevel gear 24 on shaft 25 carrying head 2. Shaft 19 also carries a worm 26 meshing` with worm gear 27 on cam shaft 28.

7 indicates a seaming tool shaft, there being two such shafts in the present instance, each of said-shafts being mounted as follows: Carried by the framework is a guide 29 having slots 30. 31 is a slide adjustable in said guide and secured in position by means of a bolt 32 extending through slot 30. The slide carries trunnions 33 supporting a bearing 34 for shaft 7. Carried by the framework is another guide 35, for each seaming tool shaft, in which guide is mounted a slide 36, said slide being confined by a gib 37. Suitably secured to slide 36 is a box 38 having trunnions 39 supporting a bearing 40 for shaft 7. Slide 36 is moved back and forth from rockshaft 41 byL means of suitable connections as 42 to thereby impart an in-and-out movement to shaft 7, said shaft pivoting around upper trunnions 33 and also moving about lower trunnions 89, the extent of the rocking movement being limited by surfaces 43. 44 and 45 are stop surfaces limiting the movement of slide 36. Box 38 is adjustable on slide 36 by means of threaded member 46 freely rotatable in extension 47 of slide 36 and in threaded en-V gagement with box 38. At the upper end of shaft 7 is a gear 48 in constant mesh with gear 49 on shaft 25 and at the-lower end of shaft 7 is a gear 8 moving in and out of mesh with gear 9 also on shaft 25. It will 'be understood that gears 48 and 49 are for the purpose of maintaining gears 8 and 9 in such relative position that they can be thrown in and out of mesh; and it will be further understood that the previously described adjustments of shafts 7 are used only when it is desired to substitute gears of different diameters as when changing from one size of can to another.

rlhe pneumatically-operated actuating device is as follows 50 and 51 indicate two cylinders carried by the framework one for each seaming tool. Sliding in each cylinder is a piston 52 having a connecting rod 53 connected to rock-shaft 41 by knuckle 54 and rod 55.' Suitable valve means are provided here taking the following form: 56

indicates a valve rod having a reduced portion 57 and a head 58. This valve rod slides in a passage 59 to which leads air inlet pipe 60 and from which there 1s an exhaust opening 61. 62 is a passage leading from cylinder 50` (or 51 as the case may be) to Vpassage 59. t will be understood that if valve rod is raised the exhaust opening 61 will be covered by a portion of said rod and head 58 will be elevated so as t0 establish communication between air inlet 60 and the cylinder, and that, conversely, if valve rod is lowered, into the position indicated in full lines in Fig. 7, communication between the airinlet and the cylinder will be prevented and communication between the cylinder and exhaust opening 61 will be established. The pneumatic device is thus a single acting device and a spring 63 is used to move the piston in the other direction. constructed the pneumatically-operated device acts to move the seaming tool toward the work and the spring to retract it from the work. It may be said here that the stroke of the piston should preferably be so adjusted with the stroke of shaft 7 that the seaming tool completes its inward movement against the work without slide 36 coming into contact with stop 44. By these Vmeans a very quick and powerful blow is imparted by the seaming tool, said blow being at the same time cushioned to some extent by compressibility of the air or other fluid used.

The valve rods 56 are automatically controlled by suitable means which in the present instance are as follows: 'It will be understood that the two seaming tools do not act concurrently but one after the other.

Therefore when the air is acting to advance one tool the other should be retracted. 64 and 65 indicate two cams on shaft 28. 66 and 67 indicate two rockshafts carrying bell cranks 68 and 69, the former connected Vby link 7 O to valve rod of cylinder 50 and theA latter connected by link 71 to valve rod of cylinder 51. The bell ycranks carry cam rolls 72 and 73 that engage 'with cams 64 and 65 and these cams are so related circumferentially on shaft 2 8 that they act successively so that when one valve is open the other is closed. Springs as 74 may be used to force the cam rolls to follow the contour of the cams. 75 is a'detent cam also mounted on shaft 28 and 76 is a pivot-ed detent or latch having roll 77 engaging with the detent cam. Detent cam 7 5v has two recesses 78 as shown and the timing, in the present instance is such that the work makes about three revolutions to a one-half revolution 'ofy shaft 28. and 65 is also provided with two'active cam surfaces as shown. Provision is preferably made whereby the latch is retracted from the detent cam and whereby at the saine time the brake is released and the clutch is thrown in. When this happens therefore the parts begin rotation, the valve ofthecylinder of the first operation roll is opened to admit air for about one revolution of the work after which the valve is closed and the exhaust opened; then the valve of the cylinder of the finishing rollV is opened to admit air for about one revolution of Vthe As here nok Each ofthe cams 64 work after which the exhaustisY opened, Thus the seaming tools actv successively.k After the seamingy cycle is completed` cam 7,5 has brought its other recessadj'akcent roll 7 7, and simultaneously with this the clutch is withdrawn and' the brake` applied thus stopping the operation. v Provision is also preferably made whereby the same control mechanisnithat actuates v the latch, brake and clutch also seryes to lift and` lower the pedestal andAV as here shownk these parts talrethey following, form Bevel gea-nifl' isf loosely mounted'on pedestal shaft 79.v and said. shaft isvertically movable,k in bearingl 80.. Mounted fastl on shaftf79 is a. collar 8l sliding on pins v82, carried, by gear lf? whereby shaft 79Jis rotated. Keyed on shaft 79v is a` sleeve 83 and. above said sleeve is a collar 84 fast to the shaft; Mounted on thesleeve are. two vcollars one, oi. which isfastl to said sleeve andthe other, 86, of which is'` loose on lsaid sleeve. Interposed between the two collars 85 and. 86 are cushionV springsl 8.7. 88isa stationary bracket in which ispivotally supported, at 89 ahandleQOconnected by means ot links f9,1v tosliding collar 86. Then handle 9O'isv depressedVv links 91 lift collar 86 causing it to slidev lo n sleeve 83l and when springs 87 have been sufficiently compressed against collar 85 sleeve. 83 is, elevated and1 by reason of collar 841.-v fast'onsha/,ftg said Y shaft is likewise elevated.,` Two 4connections extend from handle 90, one, 92, connected to de tent or latch 76, and another, 93, connected to brake and clutch lever 13.r 94 indicates springs connected to handle 90 andV bracket 88, and so long astliefdetent isv held OH# Cem. th,@ handleremans flerlesseil. and spring 94 is ineliective but as soon as a 'recess 78 permitsthedetent to drop yinward springsl 94;' act toreverse the position of, han,- dle therebyY iowerina@berechnet ihnenina'. out the clutchA andl applying the brake'.

llclaim: Y "l l. A seaming` tool having a certainE strokevr toward: and-away from` the work, and' actuating means to cause said tool to complete its stroke toward the work substantially at the beginning` of its seaming operation.

2. A seaming tool having a certain stroke toward and away from the work, and a pneumatically-operated actuating device to cause said tool to complete its stroke toward the worlr substantially at the beginning of its seamingoperation.

3. A seamine' machine including: rotatable worlr holding means, a gear carried thereby. a rotatable seaming tool shaft movable toward and away from the work, a seaminn' tool on the shaft to engage the worlr, a gear on the seaming tool Shaft to engage and disenga-ge the vgear on the workholding means, and actuating means to move the shaft to cause the gear carried by said holder, substantially at the' beginning of the.

searning operation oithe tool.v

4. A'Aseaining machine including' a seaming, tool, and means ici'. movingy the seaming tojlz toward: and away fromv the work inclndking;acylinder. a piston, connections between the piston andr tool. valve means con.- trolling, adniissionv cil lnid pressure t0 @HCl exhaust fromthe cy inder,. and Ys, timed element to automatically open and close the4 valve means.

5. seeming machine including a seam-V ing, tool,- and means for moving the scanning, tojltoward an daway inem, the workI includ ing.:y aA cylinder, av piston, connections betweenV thepisto'n. anditocl, valxemeans controlling.' admission oi flnidpressure tdand exhaust.; fromthe` cylinder, and a Cam' andconnections toI automatically open. and,` close. the. valve means.l l y y 6. A seaming, machine.'includingr a plurality of seaming tools, and means lfor moving. the seaming tools'sequentially toward and. away from the work including: a pneu-V matically opefated actuating device, valve means, and. timed means to open and close the valve'means. y n

7,. A seaming machine including.: a plurality of. seaming tools, and means for moving. thel seamingy tools sequentially toward and away fromthework includingza pneumatically operated actuating. device, valve means, and a plurality oi cams and connections to automatically open yand close the valve means. y

8. A seaming` machine including plurality ci tools, and means for moving the rseaming tools sequentially toward and away from, the work including: cylinderv and a' piton` for each seeming tool,

andv 'connections between each' seaming tool anditsp'iston. y f' i 9. A seeming machine including` a plurality offseamin'g tools, andv means for moving. the, seamingtools sequentially toward and` away 'freni the work including: a cylinder and a piston for each seaming tool, connections between each seaming tool and its piston, and separatevalve means for each cylinder controlling admission offiuid pressure to and exhaust tromsaid cylinder.

' l0. A seaming machine including a plurality of seaming tools, and means for moving the seaming tools sequentially toward and Aaway from the work including: a cylinder and a piston for each seaming tool, connections between each seaming vtool and its piston, separate valve means 1for each cylinder controllingfadmission of fluid pressure to and exhaust from said cylinder, and

a timed element for each valvemeans to automatically open and close said valve means.

l1. A seamingl machine including a plurality of seaming tools, and means for mov ing the scaming tools sequentially toward and ava i from the work including: a Cylinder and a piston for each seaming tool, connections between each seaming tool and its piston, separate valve means for each cylinder controlling admission of fluid pressure to and exhaust from said cylinder, and a cam and connections for each valve means to automatically open and close said valve means.

12. A seaming machine including a plura-lity of seaming tools, and means for moving the seaming tools sequentially toward and away from the work including: a cylinder and a piston for each seaming tool, connections between each seaming tool and its piston, separate valve means for each cylinder controlling admission of fluid pressure to and exhaust from said cylinder, a cam shaft, and cams on said shaft for sequentially and automatically opening and closing the valve means.

13. A seaming machine including a plurality of seaming tools, and means for moving the seaming tools sequentially toward and away from the work including: a cylinder and a piston for each seaming tool` connections between each seaming tool and its piston, separate valve means for each cylinder' controlling admission of fluid pret!-` sure to and exhaust from said cylinder, a cam shaft, cams on said shaft for sequenvially and automatically opening and closing the valve means, a detent cam also on said cam shaft, a latch, a clutch and a brake, and means for simultaneously withdrawing the latch from the detent cam and for operating the clutch and brake.

14. A seaming machine including: rotatable work-holding means, a seaining tool shaft pivotally supported at one end, constantly intermeshing gears onl the workholding means and the seaming tool shaft adjacent the point where the seaming tool shaft is pivoted, a seaming tool at the other end of the shaft, a guide adjacent said other jacent the pointwhere the seaming toolV shaft is pivoted, a seaming tool at the other end of the shaft, a guide adjacent said other end of the shaft, a slide movable in said guide,l a trunnion bearing in said slide supporting said shaft. a second gear movable with the work-holding means, a second Lgear' on the shaft adjacent the seaming tool to engage and disengage with the second gear on the work-holding means, and a pneumatically operated actuating device for moving the slide in the guide. Y

16. seaming machine including: rotatable work-holding means, a. seaming tool shaftv pivotaliy supported at one end, constantly intermeshing gears on the workholding means and the seaming'toolshaft adjacent ,the point where the seaming tool shaft is pivot-ed, a seaming tool at the other end of the shaft, a guide adjacent said other end of the shaft, a slide movable in said guide, a trunnion bearing in said slide supporting said shaft, a second gear movable with the work-holding means, a second gear on the shaft adjacent the seaming tool to engage and disengage with the second gear on the work-holding means, and a pneumatically operated actuating device for moving the slide in the guide in one and a spring for moving it in the other direction.

Signed at Bridgeport, in the county of Fairfield and State of Connecticut, this 22nd day of January, 1925.

' JULIUS BRENZINGER. 

